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A list of Discrete Semiconductor Components; Zener Diode Manufacturers, Vendors and Related sites.
The products the companies produced are listed under the company name which are indexed in alphabetic order.

Zener Diode Manufacturers

For ESD, EMI or Surge issues Circuit Protection page.

Central Semiconductor {Leaded Zener Diode Transient Suppressor, DO-201; Leaded Zener Diode Power, TO-3/DO-4; Zener Diode General Purpose DO-4}

Continental Device India Limited "CDIL" {300/1.5mW SMD Zeners, 1.3W/2W Axial Zeners}

Diodes Inc. {Zener Diode manufacturer}

Diotec GmbH {Axial Lead Zener Diodes, DO-201 Case style}

EIC Semiconductor Incorporated {Zener Diode Manufacturer}

International Rectifier {50A 30V Zener Diode}

Knox Semiconductor, Inc. {Zener diodes}

Microsemi {Zener Voltage Regulator Diode Manufacturer, Stabistor Diode}

Naina Semiconductor Limited {Axial lead Zener diodes, 2.7 V to 24V(1/2 W ) DO-35. Power Zener 5 W , 10 W ,25 W DO-4, DO-5 Package}

NTE {Zener Diodes 0.3 Watt to 50 Watts, Surface Mount, Through Hole}

NXP {Zener Diode Manufacturer, Voltage regulator diodes, Low-voltage avalanche regulator diodes, Single Zener diodes in a SOD123F package}

ON Semiconductor {Zener Diode Manufacturer}

PAN JIT International Inc. {Zener Diode Manufacturer}

Rectron {300mW to 1.3 watt Zener Diode}

ROHM {Zener Diode manufacturer. Surface Mount/Through Hole}

Semikron Inc {Zener Diode manufacturer}

Sensitron Semiconductor {Zener Diode Manufacturer, Zener Die. Contact Factory}

Shindengen {Zener Diodes}

Surge Components Inc. {Zener Diode manufacturer; SMD/Through Hole 500mW to 1 Watt}

Sussex Semiconductor Inc. {Zener Diode manufacturer; Through Hole 6.8V to 200V nominal voltage
10 watt DO4, 50 watt DO5, 50 watt TO3 Zeners. SMD 0.5 watt to 10 watt Unipolar Flip Die Zener}

Taiwan Semiconductor Co. {Zener Diode manufacturer}

Vishay {Zener diode; 1 to 10 percent, .8W to 3 watts}

Won-Top Electronics Co., Ltd. {Zener Diode Manufacturer; SMD package SOD-23, SOT323, Glass Axial package DO-41}

{Zener Diode Manufacturers Index}

Temperature Compensation; Derating a 1N4954, Derating a 1N5968, Diode Derating Guidelines

Diode types, by symbol;

A diode is a two terminal device using a PN junction. Diodes may be made from Silicon, Germanium, Selenium, or Gallium Arsenide. Most diodes will be made of Silicon.
Normally a forward voltage drop of 0.7 volts will be seen with Silicon Diodes, and a forward voltage drop of 0.3 volts will be seen with Germanium Diodes. Diode types:

Rectifier Diode: Heavy duty [high current] used to convert AC to DC

Tunnel Diode: Has a negative resistance region.
The current through the diode increases up to a certain voltage, than with increasing voltage the current decreases until a voltage point is reached
and the current begins to increase again

Zener Diode: Designed to conduct in the reverse [bias] direction: with a precise breakdown voltage [Vz].
Zener Diodes may be used as a voltage regulator, voltage references, voltage suppressors against ESD threats and assorted clipping and clamping circuits.
More; Zener Diode definition and graphs

Varactor Diode: 'Varicap' or 'VVC', Voltage [dependent] variable capacitor [varies in picofarads]

Schottky Diode: Designed with a rapid turn on and off once the threshold voltage is reached

Light Emitting Diode: 'LED', Gives off light when energized [forward biased]. LED definition and graphs

Photodiode: Operated in reverse-bias, reverse current increases 'almost' linearly with increase in incident light

Varistor: Resistance [flow of current] changes as a function of applied voltage voltage. A varistor may also be called a VDR [Voltage Dependent Resistor].
Varistors will have a negative voltage coefficient [high resistance at low voltages and a low resistance at high voltages].

Metal Oxide Varistor: [MOV] See listing above. MOV devices are used in parallel with the load.

Transient Voltage Suppressor: 'TVS', Designed to absorb a transient over-voltage.
The device may be designed as Uni-Polar device protecting in one direction or a Bi-Polar device protecting the circuit in both directions.
TVS manufacturers are listed on the Transient Voltage Suppressor page [Nonlinear Resistor Manufacturers].
TVS devices are used in parallel with the load.

Definitions by application, include:
Clamping Diode: A diode used to limit the peak voltage on a line to a pre-determined maximum voltage.
Welding Diode: A diode with a very large forward current rating.

Zener Diode Package styles
Surface Mount: 0906, 1006, 1208, 1406, 1608, 1612, 1712, 1913, 2012, 2916, 2616, 3415, 4526 size.

This page provides a listing of Electronic Zener Diode Manufacturers.
The products or Zener diode types the companies produces are listed under the company name which are indexed in alphabetic order.
The EMI/RFI device manufacturers page may also list some diode manufacturers. The Circuit Protection page may have additional sources for manufacturers.
Additional electronic component manufacturers may be found by selecting the Components icon below,
or electronic Equipment manufacturers may be found by selecting the OEM Equipment icon.

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